Maxwel Cornet played for an hour as Ivory Coast beat Togo 2-1 in a friendly on Saturday, while Vladimir Coufal and Tomas Soucek were on the losing side for Czech Republic against Portugal.
Three senior West Ham United players were in action for their national side, with only one completing 90 minutes across the two games.
Cornet did not get on the scoresheet in the 2-1 win but could provide a goal contribution on Tuesday night when Ivory Coast take on Guinea in Le Havre, France.
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Elsewhere, Soucek captained his side but was unable to stop Manchester United's Diogo Dalot from opening the scoring and while Cristiano Ronaldo failed to get on the scoresheet, Portugal ran out 4-0 winners.
Coufal played the full 90 minutes while Soucek was replaced with 13 minutes to go.
Both are likely to feature on Tuesday against Switzerland with a win needed for Czech Republic to avoid relegation from Group A2.
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